On Wed, Jan 14, 2004 at 01:09:02PM -0600, Dan_Caulfield@Dell.com wrote: > Even with the original disk being reformatted, you can use vgcfgrestore to > restore the LVM metadata. I'm not sure of the exact syntax, so check the > man page. You should be able to use vgscan followed by vgchange --partial > -a -y to mount the volume group read-only. This might allow the vgreduce > command to work. Thank you. vgcfgrestore was all I needed. So, in case anybody else are as stupid as me, here's what I did to recover: First I created a new PV on an unused partition I had. # pvcreate /dev/hda5 pvcreate -- physical volume "/dev/hda5" successfully created then I used vgcfgrestore with the --ignore_size argument, to have this partition pretend to be the old disk # vgcfgrestore --name vg1 --ignore_size --oldpath /dev/hdk --verbose /dev/hda5 vgcfgrestore -- INFO: using backup file "/etc/lvmconf/vg1.conf" vgcfgrestore -- locking logical volume manager vgcfgrestore -- restoring volume group "vg1" from "/etc/lvmconf/vg1.conf" vgcfgrestore -- checking existence of "/etc/lvmconf/vg1.conf" vgcfgrestore -- reading volume group data for "vg1" from "/etc/lvmconf/vg1.conf" vgcfgrestore -- reading physical volume data for "vg1" from "/etc/lvmconf/vg1.conf" vgcfgrestore -- reading logical volume data for "vg1" from "/etc/lvmconf/vg1.conf" vgcfgrestore -- checking volume group consistency of "vg1" vgcfgrestore -- checking volume group consistency of "vg1" vgcfgrestore -- reading physical volume "/dev/hda5" vgcfgrestore -- checking for new physical volume "/dev/hda5" vgcfgrestore -- forcing write of VGDA of "vg1" to physical volume "/dev/hda5" vgcfgrestore -- ignoring size mismatches vgcfgrestore -- writing VGDA of "vg1" to physical volume "/dev/hda5" vgcfgrestore -- removing any special files for "vg1" vgcfgrestore -- VGDA for "vg1" successfully restored to physical volume "/dev/hda5" after this, vgscan found the VG # vgscan vgscan -- reading all physical volumes (this may take a while...) vgscan -- found inactive volume group "vg1" vgscan -- "/etc/lvmtab" and "/etc/lvmtab.d" successfully created vgscan -- WARNING: This program does not do a VGDA backup of your volume group I activated the VG # vgchange -a y vg1 vgchange -- volume group "vg1" successfully activated and I could now remove the unused PV from the VG # vgreduce vg1 /dev/hda5 vgreduce -- doing automatic backup of volume group "vg1" vgreduce -- volume group "vg1" successfully reduced by physical volume: vgreduce -- /dev/hda5 Finally, everything is back to normal :-) Again. Thank you very much. -- // Trond Michelsen \X/ mike@crusaders.no _______________________________________________ linux-lvm mailing list linux-lvm@sistina.com http://lists.sistina.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
